FLUID MECHANICS QUESTION PAPER
INTERNAL – 2
CIVIL ENGINEERING (2-1) (SEC – A & B)
Question paper set 1
1.
Describe the process of Boundary layer formation, also describe the process of Boundary layer
separation.
2. Differentiate between a venturimeter and an orificemeter.
3. A horizontal venturimeter with 50cm diameter at inlet and 20cm throat diameter is used for
measuring rate of water flow. If the pressure at inlet is 1.8 bar and vaccum pressure at the throat
is 30cm of mercury, then find the rate of flow. Assume 10% of differential pressure head is lost
between the inlet and throat section. Assume coefficient of discharge is 0.96.
4. Discuss in detail about major and minor losses in pipes. Give corresponding equations for each.
Question paper set 2
1. The water is flowing through a pipe having diameters 20 cm and 10 cm at inlet and oulet
respectively. The rate of flow through the pipe is 35 liters/s. The inlet section is 6 m above
datum and outlet is 4 m above datum. If the pressure at inlet is 39.24 N/sq.cm, find the intensity
of pressure at exit.
2. Derive expression for discharge through a Venturimeter.
3. Describe Reynold’s experiment to demonstrate laminar flow and viscous flow.
4. Derive Hagen Poiseuille law.
Question paper set 3
1. Explain the characteristics of Laminar and Turbulent boundary layers.
2. A horizontal venturimeter with inlet diameter 20 cm and throat diameter 10 cm is used to
measure the flow of oil of sp. Gr. 0.8. The discharge of oil through venturimeter is 60 liters/s.
Find the reading of the oil-mercury differential manometer. Take Cd = 0.98.
3. Explain major and minor losses in pipes.
4. Derive Von Karman momentum integral equation.